Question to Gil
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What is the algebraic difference between an equality operator
and an equivalence operator, and in consequence between and
equality set and an equivalence set?
An observation on price lists
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If we assume that Marx's examples are drawn from a price list,
we should in consequence assume that when he talks of relative
exchange values he does not assume barter exchange. It seems
that Gils argument at times assumes barter. Is Gils argument
still valid if we assume that the equivalence is assured by
means of a set of money prices at a given instant of time.